title: The loop catheter resurrected--the reinvention of the "wheel" for aortography and left ventriculography.
authors.forename: J H
authors.initials: JH
authors.lastname: Grollman
mesh_terms: D001027:Aortography / Q000295:instrumentation*; D006328:Cardiac Catheterization / Q000295:instrumentation*; D004867:Equipment Design; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans